Steam-heat evaporator



(No Model.)

S. W. LOWELL.

STEAM HEAT EYAPORATQR. No. 254,669. Patented Mar. '7,1882

N, PETERS. Phummlwgmplwr. wnshingxan. D. c.

UNITED STATES PATENT OEEICE.

SETH W. LOWELL, OF HUME, NEW YORK, ASSIGNOR TO THE STEAM HEAT EVAPORATOR COMPANY, OF CHARLOTTE, MICHIGAN.

STEAM- H EAT EVAPO RATO R.

SPECIFICATION forming part of Letters Patent No. 254,669, dated March '7, 1882. Application filed January 16, 1882. (No model.)

To all whom it may concern.'

Be it known that I, SETE W. LOWELL, a citizen of the United States, residing at Hume, in thecounty of Allegany and State of New York, have invented certain new and'useful Improvements .in SteamHeat Evaporators, of

which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to steam-heat fruitevaporators; and it consists in the construction and arrangement of its several parts, as will be hereinafter fully set forth, and pointed out in the claims.

In the drawings, Figure lis a vertical longitudinal section. Fig. 2 is a perspective of one of the castings. Fig. 3 is a vertical cross-sec- A tion of the castings, showing the arrangement of the steam-sections thereon. Fig. 4 is one of the steam-sections. Fig. 5 is an end view of the same.

Ais the brick foundation which supports the rear portion of the evaporator. In front of it is the furnace B, over which is the boiler C, as shown.

D is the smoke-due. It connectsthe rear end of the furnace and the smoke-pipe E, as shown.

F is a hollow steam-column, which rises vertically from and communicates with the rear portion of the boiler. It extends the entire width of the evaporator, and is formed of separate anged castings G, arranged one above theother, as shown. Its top is closed by the plate f, in which is placed asafety-valve,f, as shown.

G represents one of the castings. Its upper and lower edges are provided with horizontal anges g, through the ends of which passbolts that secure the castings together, as shown. The castings are secured to each other, as shown, and rubber packin gs g are placed between the flanges.

Extending the entire length of the castings, upon either or both sides, is a at projection, g2. It is recessed its entire length, and communicates with the interior of the castings, as shown. Secured around these projections g2 are the steam-evaporatin g sections H, as shown. 5o They are formed of two sheets of metal, h h.

Each sheet is bent in to the form of a rectan gular pipe, h2, from one side of which projects the flap h3, as shown. The two sheets are then riveted together, the ends of the tlaps h3 being secured to opposite ends of the rectangular 5 5 pipes h2, as shown. This forms a steam-evaporating section of three compartments, the partitions h4 h4 acting as braces. By this construction of the sections more steam-pressure can be exerted upon them and the fruit dried more 6o rapidly bythe increased heat secured than by any other in use. The construction shown also prevents the sections from warping. The sections extend outwardly from each side of the column F and are inclined slightly upward, so that the steam condensing in them will drain oi into the boiler, and they have their outer ends closed, as shown.

Partitions h h are placed between adjacent sections, and form the evaporat-ing-chambers 7o for the fruit. In the drawings the steam-sections H project from alternate sides of the castings G. 1 do not confine myself to such arrangement, but provide that the steam-sections can project from both sides of the castings, if desired. Neither do I conne myself to one steam-column, F, placed centrally in the evaparator, but provide that columns may also be placed at each end, if desired.

The operation ot' the evaporator is readily 8o understood. The steam generated in the boiler rises in the column F and passes into the steamsections H, where its heat is transmitted to the fruit. The valve at the top of the column rises and allows the steam to escape when the press- 8 5 ure becomes too great. The column F can be extended to any height by adding to the number of castings.

What I claim is- 1. In a steam fruit-evaporator, the vertical 9o steam-column F, communicating with boiler C, and consisting of the castings G, arranged one above the other, and adapted to convey the steam to the sections H, substantially as shown and described.

2. In a steam fruit-evaporator, the castings G, having horizontal flan ges g g formed around their upper and lower edges, and provided with recessed projections g2, extending the entire length of the castings, and adapted to convey roo the steam from the column F to the sections H, substantially as shown and set forth.

3. In a steam fruit-evaporator, in combination with the boiler and steam-sections, the 5 steam-column F, formed of the separate castings Gr, provided With recessed projections g2, adapted to afford means of connection with said steam-sections, substantially as shown and described.

1o 4;. In a steam fruit-evaporator, the steamsections H, formed of the sheets h h', each bent into the form of a rectangular pipe, h2, having flaps h3 extending from them and secured to the opposite ends of the rectangular pipes h2,

r 5 substantially as shown and described.

5. In a steam fruit-evaporator, the steam sections H, provided with partitions h4, formed of the bent ends of the rectangular boxes, said partitions having their ends turned up and riveted tothe horizontal portion of the sections, zo and adapted to give additional strength to the sections7 substantially as shown and described.

In testimony whereof I hereby aix my signature in presence of two Witnesses.

SETH W. LOWELL.

Witnesses:

L. O. SMITH, RICHARD Sii/HTH. 

